<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on"
             label-position="left">

      <div class="title-container">
        <h3 class="title">用户登录</h3>
      </div>

      <el-form-item prop="name">
        <span class="svg-container">
          <svg-icon icon="user"/>
        </span>
        <el-input
          ref="name"
          v-model="loginForm.name"
          placeholder="输入用户名"
          name="name"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon="password"/>
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd-type" @click="handleShowPwd">
          <svg-icon :icon="passwordType === 'password' ? 'eye' : 'eye-open'"/>
        </span>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;"
                 @click.native.prevent="handleLogin">Login
      </el-button>

      <div class="tips">
        <span style="margin-right:20px;">name: admin</span>
        <span> password: 123456</span>
      </div>

    </el-form>
  </div>
</template>

<script>
import {validUsername} from '@/utils/index.js'

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请输入正确的用户名'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码长度不能小于6'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        name: 'admin',
        password: '123456'
      },
      loginRules: {
        name: [{required: true, trigger: 'blur', validator: validateUsername}],
        password: [{required: true, trigger: 'blur', validator: validatePassword}]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    handleShowPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then((result) => {
            console.log(result)
            this.$router.push({path: this.redirect || '/'})
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('登录表单数据校验错误')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 注意 input 背景不协调 和光标变色 */

// $cursor: #fff;

// @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
//   .login-container .el-input input {
//     color: $cursor;
//   }
// }


</style>

<style lang="scss">
/* 注意：自动填充时 input 背景不协调 和光标变色 */
$bg: #2d3a4b;
$form-item-bg-color: rgba(0, 0, 0, 0.1);
$icon-color: #889aa4;
$input-color: #eee;
$title-color: #fff;
$autofill-color: #283443; //#283443 = $form-item-bg-color
$cursor: #fff;
.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: $form-item-bg-color;
      border-radius: 5px;
      color: #454545;

      .el-input {
        display: inline-block;
        height: 47px;
        width: 85%;

        input {
          background: transparent;
          border: 0px;
          -webkit-appearance: none;
          border-radius: 0px;
          padding: 12px 5px 12px 15px;
          color: $input-color;
          height: 47px;
          caret-color: $cursor;

          &:-webkit-autofill {
            box-shadow: 0 0 0px 1000px $autofill-color inset !important;
            -webkit-text-fill-color: $cursor !important;
          }
        }
      }
    }
  }

  .tips {
    font-size: 14px;
    color: $title-color;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $icon-color;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $title-color;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd-type {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $icon-color;
    cursor: pointer;
    user-select: none;
  }
}
</style>
